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1 /* |
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2 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: ???????????????? |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 //INCLUDES |
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21 #include "CamZoomUpdateManager.h" |
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22 #include "CamUtility.h" |
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23 #include "CameraUiConfigManager.h" |
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24 |
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25 |
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26 |
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27 //MACROS |
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28 |
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29 // Cooldown period inbetween camera driver updates |
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30 const TInt KCamZoomCooldown = 200000; // .2 seconds |
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31 const TInt KCamMaxZoomCooldown = 250000; // .25 seconds |
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32 |
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33 |
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34 // ====================== MEMBER FUNCTIONS ===================== |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CCamZoomUpdateManager::NewL |
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38 // Two-phased constructor. |
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39 // ----------------------------------------------------------------------------- |
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40 // |
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41 CCamZoomUpdateManager* CCamZoomUpdateManager::NewL( CCamAppController& aController ) |
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42 { |
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43 PRINT((_L("CCamZoomUpdateManager::NewL in"))); |
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44 CCamZoomUpdateManager* self = new(ELeave) CCamZoomUpdateManager( aController ); |
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45 CleanupStack::PushL(self); |
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46 self->ConstructL (); |
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47 CleanupStack::Pop(); |
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48 PRINT((_L("CCamZoomUpdateManager::NewL out"))); |
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49 return self; |
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50 } |
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51 |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CCamZoomUpdateManager::CCamZoomUpdateManager |
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55 // C++ default constructor can NOT contain any code, that |
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56 // might leave. |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 CCamZoomUpdateManager::CCamZoomUpdateManager( CCamAppController& aController ) : |
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60 CActive( /*EPriorityStandard*/ EPriorityUserInput ), |
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61 iController( aController ) |
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62 { |
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63 iDelayedUpdate = EFalse; |
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64 } |
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65 |
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66 // ----------------------------------------------------------------------------- |
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67 // CCamZoomUpdateManager::~CCamZoomUpdateManager |
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68 // Destructor. |
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69 // ----------------------------------------------------------------------------- |
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70 // |
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71 |
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72 CCamZoomUpdateManager::~CCamZoomUpdateManager() |
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73 { |
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74 PRINT((_L("CCamZoomUpdateManager::~CCamZoomUpdateManager() in"))); |
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75 Cancel(); |
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76 iTimer.Close(); |
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77 PRINT((_L("CCamZoomUpdateManager::~CCamZoomUpdateManager() out"))); |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // CCamZoomUpdateTimer::ConstructL |
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82 // Symbian 2nd phase constructor. |
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83 // ----------------------------------------------------------------------------- |
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84 // |
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85 void CCamZoomUpdateManager::ConstructL() |
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86 { |
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87 PRINT((_L("CCamZoomUpdateManager::ConstructL() in"))); |
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88 TRAPD( err, ReadDelayValuesL() ); |
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89 if( err ) |
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90 { |
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91 PRINT((_L("CCamZoomUpdateManager::ConstructL() error in reading delay values"))); |
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92 } |
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93 User::LeaveIfError(iTimer.CreateLocal()); |
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94 CActiveScheduler::Add(this); |
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95 PRINT((_L("CCamZoomUpdateManager::ConstructL() out"))); |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // CCamZoomUpdateManager::SetZoomValue |
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100 // |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 void CCamZoomUpdateManager::SetZoomValue( TInt aValue ) |
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104 { |
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105 PRINT((_L("CCamZoomUpdateManager::SetZoomValue() => in"))); |
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106 |
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107 // PUT IN MUTEX???? |
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108 |
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109 // update value |
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110 iValue = aValue; |
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111 |
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112 if ( IsActive() ) |
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113 { |
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114 // check for starvation |
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115 TTime current; |
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116 current.UniversalTime(); |
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117 TInt64 delay = current.MicroSecondsFrom(iCooldownStart).Int64(); |
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118 |
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119 if ( delay > iCamMaxZoomCooldown ) |
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120 { |
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121 PRINT((_L("CCamZoomUpdateManager::SetZoomValue() <> IsActive, starved"))); |
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122 |
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123 // force update if active object is starved |
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124 Cancel(); |
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125 UpdateAndStartWait(); |
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126 } |
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127 else |
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128 { |
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129 PRINT((_L("CCamZoomUpdateManager::SetZoomValue() <> IsActive, updating iValue"))); |
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130 |
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131 // set the delayed update flag and wait |
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132 iDelayedUpdate = ETrue; |
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133 } |
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134 } |
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135 else |
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136 { |
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137 PRINT((_L("CCamZoomUpdateManager::SetZoomValue() <> IsNotActive, setting zoom"))); |
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138 |
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139 // notify controller and set active |
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140 UpdateAndStartWait(); |
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141 } |
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142 |
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143 PRINT((_L("CCamZoomUpdateManager::SetZoomValue() <= out"))); |
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144 } |
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145 |
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146 // ----------------------------------------------------------------------------- |
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147 // CCamZoomUpdateManager::UpdateAndStartWait |
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148 // |
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149 // ----------------------------------------------------------------------------- |
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150 // |
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151 void CCamZoomUpdateManager::UpdateAndStartWait() |
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152 { |
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153 // update cooldown start time |
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154 iCooldownStart.UniversalTime(); |
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155 |
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156 // reset delayed update flag |
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157 iDelayedUpdate = EFalse; |
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158 |
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159 // notify iController |
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160 iController.SetZoomValue( iValue ); |
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161 |
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162 // activate cooldown period |
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163 SetActive(); |
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164 iTimer.After( iStatus, iCamZoomCooldown ); |
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165 } |
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166 |
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167 // ----------------------------------------------------------------------------- |
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168 // CCamZoomUpdateManager::RunL |
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169 // |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 void CCamZoomUpdateManager::RunL() |
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173 { |
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174 PRINT((_L("CCamZoomUpdateManager::RunL() in"))); |
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175 |
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176 //PUT IN MUTEX?? |
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177 |
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178 if ( iDelayedUpdate ) |
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179 { |
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180 // notify controller and set active |
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181 UpdateAndStartWait(); |
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182 } |
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183 |
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184 PRINT((_L("CCamZoomUpdateManager::RunL() out"))); |
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185 } |
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186 |
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187 // ----------------------------------------------------------------------------- |
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188 // CCamZoomUpdateManager::DoCancel |
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189 // Cancels the timer |
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190 // ----------------------------------------------------------------------------- |
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191 // |
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192 void CCamZoomUpdateManager::DoCancel() |
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193 { |
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194 PRINT((_L("CCamZoomUpdateManager::DoCancel() in"))); |
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195 // cancel the timer |
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196 iTimer.Cancel(); |
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197 PRINT((_L("CCamZoomUpdateManager::DoCancel() out"))); |
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198 } |
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199 |
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200 // ----------------------------------------------------------------------------- |
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201 // CCamZoomUpdateManager::ReadDelayValuesL |
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202 // Gets delay values from cenrep |
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203 // ----------------------------------------------------------------------------- |
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204 // |
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205 void CCamZoomUpdateManager::ReadDelayValuesL() |
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206 { |
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207 // default values are used in case of error |
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208 iCamZoomCooldown = KCamZoomCooldown; |
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209 iCamMaxZoomCooldown = KCamMaxZoomCooldown; |
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210 RArray<TInt> delayValues; |
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211 if( iController.UiConfigManagerPtr() ) |
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212 { |
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213 iController.UiConfigManagerPtr()->SupportedZoomDelaysL( delayValues ); |
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214 iCamZoomCooldown = delayValues[0]*1000; |
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215 iCamMaxZoomCooldown = delayValues[1]*1000; |
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216 } |
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217 } |
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218 // End of File |